Have you ever wondered how your body breathes and converts carbon dioxide to oxygen? In The Respiratory System for Kids video, you will learn how exactly we do this. You will also learn about the other components and functions of this important body system. All living things need oxygen to survive. As humans, we use our lungs and other parts of the body to breathe properly and receive oxygen.

Our lungs take up most of the space in our chest, and our ribs are there to protect them and the heart. Speaking of the heart, the left lung is smaller than the right so that there's more room for the heart! On the outside, lungs are pink, spongelike, and kind of squishy. Another fun fact: Yawning is a sign that the body needs more oxygen. When we get sleepy, the brain sends a particular signal in tell our lungs to breathe in more air.

Have you ever noticed that you can breathe through both your mouth and your nose? If we breathe through the nose, the air gets filtered by tiny hairs called cilia. These hairs line the passageways of the nose to filter out dust and other substances. The air travels down the trachea, or windpipe, which is also lined with cilia.

The pharynx, which is actually part of both the respiratory and digestive systems, carries food and air divided into two pathways. The esophagus is for food and leads to the stomach. Air travels through the larynx (voice box) that leads to the trachea. At the back of the throat area is a flap of tissue called an epiglottis. The epiglottis covers the air-only passage when we swallow to keep food or drink out of the windpipe. Keep watching to learn more.

We hope you and your student(s) enjoyed learning about this important body system! If you want to learn even more, head over to our website and download one of our many free lesson plans about the human body and how it works, full of activities, worksheets, and more!

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What you will learn in Respiratory System for Kids:
0:00 Introduction to the lungs
0:32 Main purpose of the respiratory system
1:10 How lungs function
2:06 Information about the diaphragm
3:02 The nose, mouth, pharynx, and trachea
4:07 The epiglottis, bronchi, and bronchioles
5:13 Alveoli and the exchange of oxygen and carbon dioxide
6:58 Review of the facts

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